What is CVBS?

CVBS is the earliest analog camera, but now it seems that the effect is poor. CVBS composite video broadcast signal, is a widely used standard, also known as baseband video, is the (US) National Television Standards Council (NTSC) television signal traditional image data transmission method, it is an analog waveform to transmit data. The composite video contains color difference (hue and saturation) and brightness (brightness) information and synchronizes them in a blanking pulse, transmitted with the same signal at a frequency of about a maximum of 6MHz.

What is AHD?

AHD is a reliable transmission technology for high-definition video signals. The advantages are :AHD technology can realize the eliable transmission of ultra-long distance (500 meters) high-definition video signal on the existing analog transmission line; It adopts advanced Y/C signal separation technology, which can effectively reduce the color noise in the high frequency region, and the image restoration is better.

AHD, TVI and CVI are all upgraded versions of analog cameras, also known as coaxial cameras, but they use different solution systems. Compared with analog cameras, AHD, TVI and CVI have clearer effects and the same appearance. They use BNC interfaces and video cables for transmission. The advantages are smooth real-time and small storage space, but they require the use of different recorders.

In addition, IPC is a digital network high-definition camera that uses a crystal head socket and network transmission, and the effect is very clear. It can be directly connected to computers and mobile phones for viewing, but there is a certain delay compared to other methods and it takes up a lot of memory.

1. AHD technology can achieve reliable transmission of ultra-long distance (500 meters) high-definition video signals on existing analog transmission lines. It uses advanced Y/C signal separation and analog filtering technology to effectively reduce color noise in high-frequency areas. , the image restoration is better.

2. Compared with traditional analog high-definition products, the quality of AHD surveillance images has made a qualitative leap and improvement, and the highest definition can reach the full HD level of network high-definition 1080P.